Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Someone please explain this.....

Thread Tools
 
Search this Thread
 
Old Jan 20, 2004 | 07:24 AM
  #1  
99-LS1-SS's Avatar
Thread Starter
STF Veteran
 
Joined: Oct 2003
Posts: 3,486
Likes: 0
From: Greensboro, North Carolina
Default Someone please explain this.....

Like I have posted earlier, I just installed a set of Pacesetter LT's and a ORY. I think the y-pipe might still be hitting underneath the car. I will address that tonight. I took my car out for a drive last night to open it up. I was rolling about 20-30 and floored it. It kicked down into first and when it shifted into second it had a small pause. Then it did it shifting into third also. If you were to be standing outside my car watching me go by it would have sounded like I have a 6 speed because of the pause in the shift. My car has never shifted slow. It has a Yank 2800 stall converter and a shift kit. It didn't shift like that until I put the headers and y-pipe on. Does anyone have any idea what is causing it to shift like that. My two possible theories are, maybe it is hitting the rev limiter now because it can breathe better or maybe my y-pipe is hitting underneath and it sets off some kind of timing issue. I don't know if either of my theories are remotely close to accurate. Any input would be appreciated. Thanks.

Brandon

Last edited by 99-LS1-SS; Jan 23, 2004 at 11:46 AM.
Reply
Old Jan 20, 2004 | 08:15 AM
  #2  
v8maro's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: May 2003
Posts: 1,563
Likes: 0
From: Commerce, MI
Default

as for the banging, the Y pipe doesnt need to go all the way on the header collector, u can pull the y back and it should miss the torque arm/under part od the body.
-Steve
Reply
Old Jan 20, 2004 | 12:47 PM
  #3  
99-LS1-SS's Avatar
Thread Starter
STF Veteran
 
Joined: Oct 2003
Posts: 3,486
Likes: 0
From: Greensboro, North Carolina
Default

Anyone??

Last edited by 99-LS1-SS; Jan 23, 2004 at 11:45 AM.
Reply
Old Jan 23, 2004 | 11:45 AM
  #4  
99-LS1-SS's Avatar
Thread Starter
STF Veteran
 
Joined: Oct 2003
Posts: 3,486
Likes: 0
From: Greensboro, North Carolina
Default

anyone again?
Reply
Old Jan 23, 2004 | 12:46 PM
  #5  
Elite_Hot_Rod's Avatar
TECH Addict
 
Joined: Feb 2002
Posts: 2,319
Likes: 0
From: Lewisville, Texas
Default

If the Y pipe is hitting hard enough you could be getting some knock retard.
Reply
Old Apr 2, 2004 | 08:08 PM
  #6  
Ego Killer's Avatar
TECH Fanatic
iTrader: (147)
 
Joined: Feb 2003
Posts: 1,067
Likes: 1
From: Tullahoma,Tn
Default

Did you ever get this fixed? becouse I just installed a set of mac's with a ORY and mine does the same thing but mine hits the rev limiter in 2ed.....and I have a friend that gutted his cats and it does it too..
Reply
Old Apr 2, 2004 | 10:16 PM
  #7  
98,Ram,Air's Avatar
Staging Lane
 
Joined: May 2002
Posts: 85
Likes: 0
From: Longwood, Fl.
Default

Mine has done the same thing ever since I ported the MAF and bump stop mod. It acts like it pauses for a split second before it shifts. It has been this way for years and never gets any worse. It does it between 3/4 to full throttle and mostly noticeable on the 2-3 shift. When on the spray it multiplies the pause. I added a B&M shift improver and set it on the 1st setting. This almost got rid of it.
Reply
Old Apr 2, 2004 | 10:27 PM
  #8  
Iv_z28's Avatar
TECH Apprentice
 
Joined: Jul 2002
Posts: 393
Likes: 0
From: Tucson, AZ
Default

Well, I know nothing about A4's, but if you want an idea - what happens is very similar to the well known problem of MAF porting affecting the AT line pressure (->problems in A4). Your tuning is off, and that is equivalent to the MAF calibration being off -> incorrent transmission line pressure and hesitation you described (+extra wear)
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 01:21 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE